CN220272661U - Power battery module end plate - Google Patents

Abstract

The utility model discloses a power battery module end plate, which belongs to the field of battery module end plates, and comprises a plate body and a cavity formed in the plate body, wherein a plurality of honeycomb holes are formed in one side of the cavity at equal intervals, an adjusting mechanism is arranged on one side of the plate body far away from the honeycomb holes, plugs are inserted in the honeycomb holes, one ends of the plugs extend out of the plate body, one ends of the plugs extend into the cavity and are provided with limiting plates, an air bag connected with the adjusting mechanism is arranged in the cavity, an air inlet pipe is arranged on the upper surface of the air bag in a penetrating manner, one end of the air inlet pipe extends upwards out of the cavity and is provided with an air valve, the adjusting mechanism comprises a screw rod arranged on one side of the plate body, one end of the screw rod vertically extends into the cavity and is provided with a pressing plate, honeycomb armor can be formed outside the power battery module, the honeycomb armor is pressed and deforms to leave an expansion space, and after deformation, the air bag rebounds.

Description

Power battery module end plate

Technical Field

The utility model relates to the field of battery module end plates, in particular to a power battery module end plate.

Background

The power battery is a power supply for providing power for tools, and the multi-finger battery for providing power for electric automobiles, electric trains, electric bicycles and golf carts is generally composed of a plurality of groups of batteries and is clamped by a frame body outside, and two sides of the frame body are sealed by end plates and fixed;

according to patent search, chinese patent publication No. CN218482326U discloses a novel battery module end plate, which comprises an insulated module end plate, wherein a plurality of inclined positioning structures are arranged inside the module end plate, a plurality of cavities are formed between two adjacent positioning structures and the inner wall of the module end plate, and although cavities are formed between the rib positions inside the end plate and the inner side wall of the module end plate, when batteries at two sides of the module end plate expand, the elastic deformation of plastic materials is utilized to provide expansion space for the batteries;

however, when the power battery module is supported by the patent, an expansion space is reserved through the cavity and the rib surface, and the internal stress of the rib surface after the power battery module is expanded acts greatly.

Disclosure of Invention

Technical problem to be solved

Aiming at the problems existing in the prior art, the utility model aims to provide a power battery module end plate which can form honeycomb armor outside a power battery module, and the honeycomb armor is pressed to deform to leave an expansion space and can rebound after deformation.

Technical proposal

In order to solve the problems, the utility model adopts the following technical scheme.

The utility model provides a power battery module end plate, includes the plate body and sets up at the inside cavity of plate body, a plurality of honeycomb holes have been seted up to one side equidistance of cavity, one side that the honeycomb hole was kept away from to the plate body is provided with adjustment mechanism, the inside of honeycomb hole all is inserted and is equipped with the chock, the inside of plate body is all extended to the one end of chock, the inside limiting plate of just all installing of cavity is all extended to the one end of chock, the inside gasbag that is provided with and is connected with adjustment mechanism of cavity, the upper surface of gasbag runs through and installs the intake pipe, the one end of intake pipe upwards extends the inside of cavity and is equipped with the pneumatic valve, can form cellular armor in power battery module's outside, and cellular armor is pressed and is taken place to deform and is reserved the inflation space, can rebound after deformation.

Further, adjustment mechanism is including setting up the screw rod in plate body one side, the one end of screw rod extends into perpendicularly along cavity inside and installs the clamp plate, the centre of clamp plate one side is rotated through the bearing and is connected in the one end of screw rod, one side of clamp plate is connected in the one side that the honeycomb hole was kept away from to the gasbag, corotation or reversal screw rod, adjusts the intensity that the gasbag supported the limiting plate.

Further, one end of the screw rod, which is far away from the plate body, is welded with a hand wheel, a butterfly nut is arranged at the outer side of the screw rod at the outer position of the plate body in a threaded manner, and the butterfly nut is tightly attached to the plate body along the screw rod, so that the screw rod can be locked under the friction effect.

Further, a cooling fin is arranged on one side, far away from the air bag, of the pressing plate, the upper end of the cooling fin extends upwards to form the inside of the cavity, and the cooling fin is in partial contact with air to absorb heat in the cavity so as to enable the inside of the end plate to dissipate heat.

Further, a plurality of radiating holes are formed in the pressing plate, so that the contact area between the pressing plate and the radiating fins can be increased.

Further, the opening part of the cavity is provided with the cover plate, the upper surface of the cover plate is provided with the through hole penetrated by the air inlet pipe, and the cavity is closed by the cover plate, so that the air bag can be stably supported, and the air bag is prevented from being exposed from the cavity.

Advantageous effects

Compared with the prior art, the utility model has the advantages that:

(1) When this scheme supports power battery module, fix the plate body on power battery module frame, support tight power battery module with the chock, the gasbag can extrude the limiting plate, correspond the chock along honeycomb Kong Dingzhu, can form cellular armor in power battery module's outside, power battery module is because of the temperature rise inflation back, outwards extrude corresponding chock, simultaneously the chock is along corresponding honeycomb hole extrusion gasbag, the elastic potential energy increase of gasbag, the expansion space is reserved in the deformation of cellular armor pressurized, after the power battery module inflation, under the elastic potential energy effect of gasbag, can promote the chock to hug closely power battery module along the honeycomb hole, can rebound after the deformation.

(2) Simultaneously, the screw rod is positively rotated, the cavity is deepened along the screw thread and the pressing plate is pushed to compress the air bag, so that the extrusion effect of the air bag can be increased, otherwise, the screw rod is reversely rotated, the cavity is stretched out along the screw thread and the pressing plate is pulled to be away from the air bag, the extrusion effect of the air bag can be reduced, and the strength of the air bag supporting limiting plate can be adjusted.

Drawings

FIG. 1 is a schematic diagram of a front view of the present utility model;

FIG. 2 is a schematic rear view of the present utility model;

FIG. 3 is a schematic cross-sectional view of the present utility model;

fig. 4 is an enlarged schematic view of the structure of fig. 3 a according to the present utility model.

The reference numerals in the figures illustrate:

1. honeycomb holes; 2. a chock; 3. a limiting plate; 4. an air bag; 5. an air inlet pipe; 6. an air valve; 7. a pressing plate; 8. a screw; 9. a hand wheel; 10. a butterfly nut; 11. a heat sink; 12. a heat radiation hole; 13. a cover plate; 14. and a through hole.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model; it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments, and that all other embodiments obtained by persons of ordinary skill in the art without making creative efforts based on the embodiments in the present utility model are within the protection scope of the present utility model.

Examples:

referring to fig. 1-4, an end plate of a power battery module comprises a plate body and a cavity formed in the plate body, wherein a plurality of honeycomb holes 1 are formed in one side of the cavity at equal intervals, one side of the plate body, far away from the honeycomb holes 1, is provided with an adjusting mechanism, plug blocks 2 are inserted in the inner parts of the honeycomb holes 1, one ends of the plug blocks 2 extend out of the plate body, limiting plates 3 are arranged in the cavity in a manner of being welded, air bags 4 connected with the adjusting mechanism are arranged in the cavity, air inlets 5 are arranged on the upper surfaces of the air bags 4 in a penetrating manner in an adhesive manner, one ends of the air inlets 5 extend upwards into the cavity and are provided with air valves 6, the air bags 4 are filled with sufficient inert gas, and the air valves 6 are closed.

Referring to fig. 3 and 4, the adjustment mechanism includes a screw rod 8 disposed at one side of the plate body, one end of the screw rod 8 extends vertically along the thread into the cavity and is provided with a pressing plate 7, one side of the pressing plate 7 is connected to one end of the screw rod 8 through bearing rotation, one side of the pressing plate 7 is connected to one side of the air bag 4 far away from the honeycomb hole 1, meanwhile, the screw rod 8 rotates forward, penetrates into the cavity along the thread and pushes the pressing plate 7 to press the air bag 4, the extrusion effect of the air bag 4 can be increased, otherwise, the screw rod 8 rotates reversely, stretches out of the cavity along the thread and pulls the pressing plate 7 far away from the air bag 4, the extrusion effect of the air bag 4 can be reduced, and the strength of the air bag 4 supporting limiting plate 3 is adjusted.

Referring to fig. 3, a hand wheel 9 is welded at one end of the screw rod 8 far away from the plate body, a butterfly nut 10 is mounted at the position, outside the screw rod 8, of the plate body in a threaded manner, when the adjusting mechanism works, the hand wheel 9 can be operated, the screw rod 8 does not need to be in contact with the hand, the screw rod 8 is not needed to be in contact with the screw rod 8, the butterfly nut 10 is positively rotated, the screw rod 8 can be tightly attached to the plate body along the screw rod 8, otherwise, the butterfly nut 10 is reversely rotated, the plate body is separated, and the locking state of the screw rod 8 can be relieved.

Referring to fig. 1 and 3, a cooling fin 11 is flatly arranged on one side of the pressing plate 7 far away from the air bag 4, the cooling fin 11 is made of ice silk, the upper end of the cooling fin 11 extends upwards to form a cavity, when the cooling fin works, part of the cooling fin 11 is in contact with air, heat is taken away by the air, a temperature difference is formed in the cooling fin to absorb heat in the cavity, and therefore the inside of the end plate dissipates heat.

Referring to fig. 3, the pressure plate 7 is provided with a plurality of heat dissipation holes 12, and the heat dissipation holes 12 can increase the contact area between the pressure plate 7 and the heat dissipation fins 11, so that the heat of the pressure plate 7 is conveniently transferred to the heat dissipation fins 11 under the action of temperature difference.

Referring to fig. 1 and 2, a cover plate 13 is assembled at the opening of the cavity through screws, a through hole 14 penetrated by the air inlet pipe 5 is formed in the upper surface of the cover plate 13, when the air inlet valve is in operation, the air bag 4 can be stably supported by the cover plate 13 to avoid the air bag 4 from being exposed out of the cavity, the air inlet pipe 5 extends out along the through hole 14 and cannot be flattened by the cover plate 13, and when the air valve 6 is opened, the air passage in the air inlet pipe 5 is smooth, and inert gas can be filled into the air bag 4 or redundant inert gas can be discharged.

Working principle: when supporting power battery module, all towards power battery module with the chock 2, again fix the plate body on power battery module frame, support power battery module with chock 2, and pneumatic valve 6 seals intake pipe 5, gasbag 4 can extrude limiting plate 3, press corresponding chock 2 along honeycomb hole 1, can form cellular armor in power battery module's outside, power battery module is because of the temperature rise inflation back, outside extrusion corresponds chock 2, simultaneously chock 2 is along corresponding honeycomb hole 1 extrusion gasbag 4, the elastic potential energy increase of gasbag 4, the cellular armor is pressed and is taken place the deformation and set out the expansion space, after the power battery module inflation, under the elastic potential energy effect of gasbag 4, can promote chock 2 along honeycomb hole 1 hug closely power battery module, can rebound after the deformation.

Meanwhile, the forward rotating screw rod 8 stretches into the cavity along the threads and pushes the pressing plate 7 to press the air bag 4, so that the extrusion effect of the air bag 4 can be increased, and conversely, the reverse rotating screw rod 8 stretches out of the cavity along the threads and pulls the pressing plate 7 away from the air bag 4, so that the extrusion effect of the air bag 4 can be reduced, and the strength of the air bag 4 for supporting the limiting plate 3 can be adjusted.

The above description is only of the preferred embodiments of the present utility model; the scope of the utility model is not limited in this respect. Any person skilled in the art, within the technical scope of the present disclosure, may apply to the present utility model, and the technical solution and the improvement thereof are all covered by the protection scope of the present utility model.

Claims (6)

1. The utility model provides a power battery module end plate, includes the plate body and sets up at the inside cavity of plate body, its characterized in that: a plurality of honeycomb holes (1) have been seted up to one side equidistance of cavity, one side that honeycomb hole (1) was kept away from to the plate body is provided with adjustment mechanism, inside all the inserting of honeycomb hole (1) is equipped with chock (2), inside the plate body is all extended to the one end of chock (2), inside and limiting plate (3) are all installed to the one end of chock (2) all extend into the cavity, inside gasbag (4) that are provided with and are connected with adjustment mechanism of cavity, air inlet pipe (5) are installed to the upper surface through-mounting of gasbag (4), inside and being equipped with pneumatic valve (6) of cavity are upwards extended to the one end of air inlet pipe (5).

2. The power battery module end plate of claim 1, wherein: the adjusting mechanism comprises a screw rod (8) arranged on one side of the plate body, one end of the screw rod (8) vertically extends into the cavity, a pressing plate (7) is arranged in the cavity, and one side of the pressing plate (7) is connected to one side, far away from the honeycomb holes (1), of the air bag (4).

3. The power battery module end plate of claim 2, wherein: one end of the screw rod (8) far away from the plate body is welded with a hand wheel (9), and a butterfly nut (10) is arranged at the outer side of the screw rod (8) and positioned at the outer position of the plate body in a threaded manner.

4. A power cell module end plate according to claim 3, wherein: and a radiating fin (11) is arranged on one side, far away from the air bag (4), of the pressing plate (7), and the upper end of the radiating fin (11) extends upwards to the inside of the cavity.

5. The power battery module end plate of claim 2, wherein: the pressing plate (7) is provided with a plurality of heat dissipation holes (12).

6. The power battery module end plate of claim 1, wherein: the opening part of the cavity is provided with a cover plate (13), and the upper surface of the cover plate (13) is provided with a through hole (14) penetrated by the air inlet pipe (5).